IEEE Draft Standard Test Procedure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis Amendment 2: To Change the Description of Transient Recovery Voltage for Harmonization with IEC 62271-100
This standard is revised to change the descriptions of the standard transient recoveryvoltage (TRV) envelope and ratings. This is applicable for ac high-voltage circuit breakers ratedabove 1000 V and on a symmetrical current basis. The capability limits of these circuit breakersare determined to a major degree by the TRV. The revised descriptions of TRV bring the TRV requirements in IEEE standards...